<script setup>
import { VDataTableServer } from 'vuetify/labs/VDataTable'
import { paginationMeta } from '@/@fake-db/utils'
import { useInvoiceStore } from '@/views/apps/invoice/useInvoiceStore'

const invoiceListStore = useInvoiceStore()
const searchQuery = ref('')
const dateRange = ref('')
const selectedStatus = ref()
const totalPage = ref(1)
const totalInvoices = ref(0)
const invoices = ref([])

const options = ref({
  page: 1,
  itemsPerPage: 10,
  sortBy: [],
  groupBy: [],
  search: undefined,
})

const isLoading = ref(false)

// 👉 headers
const headers = [
  {
    title: '#ID',
    key: 'id',
  },
  {
    title: 'Trending',
    key: 'trending',
    sortable: false,
  },
  {
    title: 'Total',
    key: 'total',
  },
  {
    title: 'Date',
    key: 'date',
  },
  {
    title: 'Actions',
    key: 'actions',
    sortable: false,
    width: '3rem',
  },
]

// 👉 Fetch Invoices
const fetchInvoices = (query, currentStatus, firstDate, lastDate, option) => {
  isLoading.value = true
  invoiceListStore.fetchInvoices({
    q: query,
    status: currentStatus,
    startDate: firstDate,
    endDate: lastDate,
    options: option,
  }).then(response => {
    invoices.value = response.data.invoices
    totalPage.value = response.data.totalPage
    totalInvoices.value = response.data.totalInvoices
    options.value.page = response.data.page
  }).catch(error => {
    console.log(error)
  })
  isLoading.value = false
}

const resolveInvoiceStatusVariantAndIcon = status => {
  if (status === 'Partial Payment')
    return {
      variant: 'success',
      icon: 'tabler-circle-half-2',
    }
  if (status === 'Paid')
    return {
      variant: 'warning',
      icon: 'tabler-chart-pie',
    }
  if (status === 'Downloaded')
    return {
      variant: 'info',
      icon: 'tabler-arrow-down-circle',
    }
  if (status === 'Draft')
    return {
      variant: 'primary',
      icon: 'tabler-device-floppy',
    }
  if (status === 'Sent')
    return {
      variant: 'secondary',
      icon: 'tabler-circle-check',
    }
  if (status === 'Past Due')
    return {
      variant: 'error',
      icon: 'tabler-info-circle',
    }
  
  return {
    variant: 'secondary',
    icon: 'tabler-x',
  }
}

const computedMoreList = computed(() => {
  return paramId => [
    {
      title: 'Download',
      value: 'download',
      prependIcon: 'tabler-download',
    },
    {
      title: 'Edit',
      value: 'edit',
      prependIcon: 'tabler-pencil',
      to: {
        name: 'apps-invoice-edit-id',
        params: { id: paramId },
      },
    },
    {
      title: 'Duplicate',
      value: 'duplicate',
      prependIcon: 'tabler-layers-intersect',
    },
  ]
})

const deleteInvoice = id => {
  invoiceListStore.deleteInvoice(id).then(() => {
    fetchInvoices(searchQuery.value, selectedStatus.value, dateRange.value?.split('to')[0], dateRange.value?.split('to')[1], options.value)
  }).catch(error => {
    console.log(error)
  })
}

// 👉 watch for data table options like itemsPerPage,page,searchQuery,sortBy etc...
watchEffect(() => {
  const [start, end] = dateRange.value ? dateRange.value.split('to') : ''

  fetchInvoices(searchQuery.value, selectedStatus.value, start, end, options.value)
})
</script>

<template>
  <section v-if="invoices">
    <VCard id="invoice-list">
      <VCardText class="d-flex align-center flex-wrap gap-4">
        <!-- 👉 Actions  -->
        <div class="me-3 d-flex gap-3">
          <AppSelect
            :model-value="options.itemsPerPage"
            :items="[
              { value: 10, title: '10' },
              { value: 25, title: '25' },
              { value: 50, title: '50' },
              { value: 100, title: '100' },
              { value: -1, title: 'All' },
            ]"
            style="width: 6.25rem;"
            @update:model-value="options.itemsPerPage = parseInt($event, 10)"
          />
        </div>

        <VSpacer />

        <div class="d-flex align-center flex-wrap gap-4">
          <!-- 👉 Export invoice -->
          <VBtn
            prepend-icon="tabler-plus"
            :to="{ name: 'apps-invoice-add' }"
          >
            Export
          </VBtn>
        </div>
      </VCardText>

      <VDivider />

      <!-- SECTION Datatable -->
      <VDataTableServer
        v-model:items-per-page="options.itemsPerPage"
        v-model:page="options.page"
        :loading="isLoading"
        :items-length="totalInvoices"
        :headers="headers"
        :items="invoices"
        class="text-no-wrap"
        @update:options="options = $event"
      >
        <!-- Trending Header -->
        <template #column.trending>
          <VIcon
            size="22"
            icon="tabler-trending-up"
          />
        </template>

        <!-- id -->
        <template #item.id="{ item }">
          <RouterLink :to="{ name: 'apps-invoice-preview-id', params: { id: item.value } }">
            #{{ item.raw.id }}
          </RouterLink>
        </template>

        <!-- trending -->
        <template #item.trending="{ item }">
          <VTooltip>
            <template #activator="{ props }">
              <VAvatar
                :size="30"
                v-bind="props"
                :color="resolveInvoiceStatusVariantAndIcon(item.raw.invoiceStatus).variant"
                variant="tonal"
              >
                <VIcon
                  :size="20"
                  :icon="resolveInvoiceStatusVariantAndIcon(item.raw.invoiceStatus).icon"
                />
              </VAvatar>
            </template>
            <p class="mb-0">
              {{ item.raw.invoiceStatus }}
            </p>
            <p class="mb-0">
              Balance: {{ item.raw.balance }}
            </p>
            <p class="mb-0">
              Due date: {{ item.raw.dueDate }}
            </p>
          </VTooltip>
        </template>

        <!-- Total -->
        <template #item.total="{ item }">
          ${{ item.raw.total }}
        </template>

        <!-- issued Date -->
        <template #item.date="{ item }">
          {{ item.raw.issuedDate }}
        </template>

        <!-- Actions -->
        <template #item.actions="{ item }">
          <IconBtn @click="deleteInvoice(item.raw.id)">
            <VIcon icon="tabler-trash" />
          </IconBtn>

          <IconBtn :to="{ name: 'apps-invoice-preview-id', params: { id: item.raw.id } }">
            <VIcon icon="tabler-eye" />
          </IconBtn>

          <MoreBtn
            :menu-list="computedMoreList(item.raw.id)"
            color="undefined"
            item-props
          />
        </template>
        <template #bottom>
          <VDivider />
          <div class="d-flex align-center justify-sm-space-between justify-center flex-wrap gap-3 pa-5 pt-3">
            <p class="text-sm text-disabled mb-0">
              {{ paginationMeta(options, totalInvoices) }}
            </p>

            <VPagination
              v-model="options.page"
              :length="Math.ceil(totalInvoices / options.itemsPerPage)"
              :total-visible="$vuetify.display.xs ? 1 : Math.ceil(totalInvoices / options.itemsPerPage)"
            >
              <template #prev="slotProps">
                <VBtn
                  variant="tonal"
                  color="default"
                  v-bind="slotProps"
                  :icon="false"
                >
                  Previous
                </VBtn>
              </template>

              <template #next="slotProps">
                <VBtn
                  variant="tonal"
                  color="default"
                  v-bind="slotProps"
                  :icon="false"
                >
                  Next
                </VBtn>
              </template>
            </VPagination>
          </div>
        </template>
      </VDataTableServer>
      <!-- !SECTION -->
    </VCard>
  </section>
</template>

<style lang="scss">
#invoice-list {
  .invoice-list-actions {
    inline-size: 8rem;
  }

  .invoice-list-search {
    inline-size: 12rem;
  }
}
</style>
